CN110398354A - A kind of safety valve automatic inspection device, method of calibration and storage medium - Google Patents
A kind of safety valve automatic inspection device, method of calibration and storage medium Download PDFInfo
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- CN110398354A CN110398354A CN201910654768.3A CN201910654768A CN110398354A CN 110398354 A CN110398354 A CN 110398354A CN 201910654768 A CN201910654768 A CN 201910654768A CN 110398354 A CN110398354 A CN 110398354A
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- safety valve
- pressure
- interface
- verification
- transmitter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of safety valve automatic inspection device, method of calibration and storage medium, which includes: data collector, Switching Power Supply, switch filter, aviation transmitter interface and serial line interface converter；The data collector is electrically connected with the Switching Power Supply, the serial line interface converter and aviation transmitter interface respectively, and the Switching Power Supply is connect with the switch filter, and the aviation transmitter interface is for connecting pressure transmitter.The calibration equipment can read safety valve automatically and open instantaneous pressure, automatic collection verification pressure value and output verification as a result, to greatly improve the efficiency and accuracy of verification.
Description
Technical field
The present invention relates to the safety valve testing fields more particularly to a kind of automatic school of safety valve in special safety equipment attachment
Experiment device, method of calibration and storage medium.
Background technique
Safety valve testing is implemented by dedicated checking table, in current checking process, generally installs safety valve
Onto checking table, vent valve is closed, intake valve is slowly opened, gradually rises pressure, while to watch pressure tabular value attentively, work as safety
Moment opens after valve reaches the pressure adjusted, artificial to read pressure value by precision pressure gauge, to obtain verification data, then
According to verification regulation and require literary sketch pressure manual calculating whether qualified, the quality and efficiency of this mode all can not meet the modern times
The demand of change.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of safety valve automatic Verification dresses
It sets, safety valve can be read automatically and open instantaneous pressure, carry out verification automatically and output verification as a result, to greatly improve
The efficiency and accuracy of verification.
The second object of the present invention is to provide a kind of safety valve set pressure automatic Verification method, can read peace automatically
Full valve opens instantaneous pressure, carries out verification automatically and output verification as a result, to greatly improve the efficiency and standard of verification
True property.
The third object of the present invention is to provide a kind of computer readable storage medium, the program stored in the storage medium
It can realize that the automatic safety valve that reads opens instantaneous pressure when operation, carry out verifying automatically and output verification is as a result, to greatly
Improve the efficiency and accuracy of verification.
An object of the present invention adopts the following technical scheme that realization:
A kind of safety valve automatic inspection device, comprising: data collector, Switching Power Supply, switch filter, aviation transmitter
Interface and serial line interface converter；The data collector respectively with the Switching Power Supply, the serial line interface converter and
The electrical connection of aviation transmitter interface, the Switching Power Supply are connect with the switch filter, and the aviation transmitter interface is used for
Connect pressure transmitter.
Further, the RS485 interface of the RS485 interface of the serial line interface converter and the data collector connects
It connects, another data-interface of the serial line interface converter is RS-232C interface.
Further, the RS485 interface of the serial line interface converter passes through Modbus RTU communication protocol and the number
It is connected according to the RS485 interface of collector.
Further, the switch filter is IEC socket-type band fuse switch filter.
It further, further include pressure transmitter, the pressure transmitter is connect with the aviation transmitter interface, described
Pressure transmitter is used to measure the pressure value of the safety valve.
Further, the pressure transmitter is docked between pressure pump and safety valve or is connect by threeway crossover sub
It refutes between pressure pump and pressure gauge.
The second object of the present invention adopts the following technical scheme that realization:
A kind of safety valve set pressure automatic Verification method, comprising the following steps:
Start to carry out upper boosting in period when safety valve reaches set-pressure unlatching in calibration equipment, obtains in real time
The measurement data for the pressure transmitter being connected to safety valve is taken, which is current data；
Corresponding pressure value is obtained according to the current data；
Obtain the maximum pressure value in measured pressure value；
The maximum pressure value is compared to judge whether verification is qualified with standard set-pressure according to verification regulation.
Further, after judging whether verification is qualified, corresponding verification report is automatically generated.
Further, further comprising the steps of:
It continuously executes three times and obtains verification data step and judgment step；
Judge whether that check results are qualification three times；
If so, determining safety valve testing qualification；
If it is not, then determining that the safety valve testing is unqualified.
The third object of the present invention adopts the following technical scheme that realization:
A kind of computer readable storage medium, the computer-readable recording medium storage have executable computer program,
The computer program can realize a kind of safety valve set pressure automatic Verification method as described above when running.
Compared with prior art, the beneficial effects of the present invention are:
The safety valve automatic inspection device can read safety valve automatically and open instantaneous pressure, and according to read pressure value
It is compared with standard set-pressure, carries out verification automatically and output verification as a result, to greatly improve the efficiency of verification
And accuracy.
Detailed description of the invention
Fig. 1 is a kind of electrical connection schematic diagram of safety valve automatic inspection device provided by the invention；
Fig. 2 is a kind of block diagram of power of alterating and direct current provided by the invention；
Fig. 3 is a kind of block diagram of power-supply filter provided by the invention；
Fig. 4 is a kind of block diagram of data collector provided by the invention；
Fig. 5 is a kind of block diagram of serial line interface provided by the invention；
Fig. 6 is a kind of connection schematic diagram of pressure transmitter and safety valve automatic inspection device provided by the invention；
Fig. 7 is a kind of flow diagram of safety valve set pressure automatic Verification method provided by the invention.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Please refer to Fig. 1 to 6, a kind of safety valve automatic inspection device, comprising: data collector, Switching Power Supply, switch filtering
Device, aviation transmitter interface and serial line interface converter；The data collector respectively with the Switching Power Supply, described serial
Interface convertor and the electrical connection of aviation transmitter interface；The Switching Power Supply passes through three core Stranded cables and the switch filter
Connection, the switch filter is IEC socket-type band fuse switch filter, by switch filter to the alternating current of 220V
It is filtered, and the alternating current of 220V can be converted into the direct current of 24V by Switching Power Supply, be conveyed for data collector stable
Power supply；Wherein, data collector has 2 road DI (numeral input), 8 road AI (0-20mA/4-20mA), uses 5 road AI now
(logic input), 2 road DI (numeral input), remaining 3 road AI pass through industrial standard as use, AI interface is expanded in the future
Three line aviation interfaces (i.e. aviation transmitter interface) connect the current value acquisition that pressure transmitter carries out pressure.
Pipe in precision pressure gauge is passed through when checking table carries out upper boosting using the safety valve automatic inspection device
Real-time pressure is transmitted to high-precision data collector by the pressure sensor, that is, pressure transmitter installed at road, when verification starts
Data collector will read real-time pressure with certain frequency (such as frequency of 30 times/second), and according to " numerical value rule for rounding off and pole
Limit representation method and the judgement of numerical value " retain three decimal points, it is opened when safety valve reaches set-pressure moment, pressure is under
Drop, the pressure spot of whole process can form a complete curve by software program, using the maximum value of this section of curve as
The actual pressure of safety valve setting repeats aforesaid operations and completes the whole fixed sum data value acquisition of safety valve pressure three times, according to verification
Data automatically generate original record, and whether qualified, so if being verified three times according to the requirement judgement of standard set-pressure and verification regulation
After automatically generate corresponding verification report.Both verification efficiency had been improved, it is ensured that verification pressure precise value ensures safety valve school
Report quality is tested, while also reducing labor intensity to realize management automation, the core for improving safety valve testing mechanism is competing
Strive power.
As a preferred embodiment, the RS485 interface of the serial line interface converter is logical by Modbus RTU
Letter agreement is connect with the RS485 interface of the data collector, another data-interface of the serial line interface converter is RS-
232C interface.The connection of the RS485 interface of the serial line interface converter and data collector, converts signals into RS-232C interface
Signal, the converter support bi-directional conversion, realize data acquisition while supporting to carry out parameter setting to data collector.
As a preferred embodiment, further include pressure transmitter, the pressure transmitter and the aviation pick-up
The connection of device interface, the pressure transmitter are used to measure the pressure value of the safety valve, and the pressure transmitter is turned by threeway
Changing-over head is docked between pressure pump and safety valve or is docked between pressure pump and pressure gauge.By threeway crossover sub come
It plugs into, forms the linker of equalization of pressure, it is ensured that pressure gauge, transmitter, the pressure of safety valve three are consistent.
Switching Power Supply common on the market can be used in Switching Power Supply, specifically, referring to Fig.2, Switching Power Supply includes electromagnetism filter
Wave circuit, two rectifying/filtering circuits, switching circuit, overload protecting circuit, control circuit, detection circuit, overvoltage protection electricity
Road, inductance, two photoelectrical couplers；The input terminal in em filtering circuit accesses alternating current, and the output end in em filtering circuit passes through
One rectifying/filtering circuit is connect with switching circuit, and switching circuit is connect by inductance with another rectifying/filtering circuit, should
Rectifying/filtering circuit and the voltage output end of Switching Power Supply connect, switching circuit respectively with overload protecting circuit and control circuit
Connection, overload protecting circuit are connected to control circuit, and one end of detection circuit is connect with the voltage output end of the Switching Power Supply, separately
One end is connected to the control circuit by a photoelectrical coupler, one end of overvoltage crowbar and the voltage output of the Switching Power Supply
End connection, the other end are connect by another photoelectrical coupler with control electric appliance.Switch filter can also be used common on the market
Switch filter.
Referring to Fig. 7, it is a kind of flow diagram of safety valve set pressure automatic Verification method, including following step
It is rapid:
Start to carry out upper boosting in period when safety valve reaches set-pressure unlatching in calibration equipment, obtains in real time
The measurement data for the pressure transmitter being connected to safety valve is taken, which is current data；
Corresponding pressure value is obtained according to the current data；
Obtain the maximum pressure value in measured pressure value；
The maximum pressure value is compared to judge whether verification is qualified with standard set-pressure according to verification regulation；
After judging whether verification is qualified, corresponding verification report is automatically generated.
This method is applied in above-mentioned safety valve automatic inspection device, can be embedded into data collector by software systems
In, in this way, can realize that the automatic safety valve that reads opens instantaneous pressure, and adjusted according to read pressure value and standard
Pressure is compared, and carries out verification automatically and output verification as a result, to greatly improve the efficiency and accuracy of verification.
As a preferred embodiment, further comprising the steps of:
It continuously executes three times and obtains verification data step and judgment step；
Judge whether that check results are qualification three times；
If so, determining safety valve testing qualification；
If it is not, then determining that the safety valve testing is unqualified.
Verification data may be caused error occur because of certain reasons in checking procedure, to influence the standard of verification
True property.By way of repeatedly verifying, avoid affecting the accuracys of check results because of error caused by single verifies, really
Also the accuracy that verification is determined while protecting the efficiency of verification, avoids the occurrence of mistake.
Using the above method, when checking table carries out upper boosting, pass through the pressure installed at the pipeline of precision pressure gauge
Force snesor, that is, pressure transmitter obtains the real-time pressure of pipeline, reads real-time pressure with certain frequency, and according to " numerical value is repaired
About representation method and judgement of the rule with limiting figure " retain three decimal points, it is opened when safety valve reaches set-pressure moment,
Pressure declines therewith, and the pressure spot of whole process can form a complete curve by software program, with this section of curve
Actual pressure of the maximum value as safety valve setting, repeating aforesaid operations completion, the whole fixed sum data value of safety valve pressure is adopted three times
Collection automatically generates original record according to verification data, is verified three times according to the requirement judgement of standard set-pressure and verification regulation
It is whether qualified, then automatically generate corresponding verification report.Both verification efficiency had been improved, it is ensured that verification pressure precise value is protected
Hinder safety valve testing report quality, while also reducing labor intensity to realize management automation, improves safety valve testing
The core competitiveness of mechanism.
The present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage has and can hold
Row computer program, the computer program can realize a kind of safety valve set pressure automatic Verification side as described above when running
Method.
The computer-readable recording medium storage has computer program, if method of the invention is with SFU software functional unit
Form realize and when sold or used as an independent product, can store in the computer storage medium.Based on such
Understand, the present invention realizes all or part of the process in above-described embodiment method, can also instruct phase by computer program
The hardware of pass is completed, and the computer program can be stored in a computer storage medium, which is being located
It manages when device executes, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer program includes computer program generation
Code, the computer program code can be source code form, object identification code form, executable file or certain intermediate forms
Deng.The computer storage medium may include: any entity or device, record that can carry the computer program code
Medium, USB flash disk, mobile hard disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), with
Machine access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..
It should be noted that the content that the computer storage medium includes can be according to legislation and patent practice in jurisdiction
It is required that carrying out increase and decrease appropriate, such as in certain jurisdictions, do not wrapped according to legislation and patent practice, computer storage medium
Include electric carrier signal and telecommunication signal.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of safety valve automatic inspection device characterized by comprising data collector, Switching Power Supply, switch filter,
Aviation transmitter interface and serial line interface converter；The data collector respectively with the Switching Power Supply, the serial interface
Mouth converter and the electrical connection of aviation transmitter interface, the Switching Power Supply are connect with the switch filter, the aviation pick-up
Device interface is for connecting pressure transmitter.
2. safety valve automatic inspection device as described in claim 1, which is characterized in that the serial line interface converter
RS485 interface is connect with the RS485 interface of the data collector, another data-interface of the serial line interface converter is
RS-232C interface.
3. safety valve automatic inspection device as claimed in claim 2, which is characterized in that the serial line interface converter
RS485 interface is connect by Modbus RTU communication protocol with the RS485 interface of the data collector.
4. safety valve automatic inspection device as described in claim 1, which is characterized in that the switch filter is IEC socket
Type band fuse switch filter.
5. safety valve automatic inspection device as described in claim 1, which is characterized in that it further include pressure transmitter, the pressure
Power transmitter is connect with the aviation transmitter interface, and the pressure transmitter is used to measure the pressure value of the safety valve.
6. safety valve automatic inspection device as claimed in claim 5, which is characterized in that the pressure transmitter is turned by threeway
Changing-over head is docked between pressure pump and safety valve or is docked between pressure pump and pressure gauge.
7. a kind of safety valve set pressure automatic Verification method, which comprises the following steps:
Obtain verification data step:
Start to carry out upper boosting in calibration equipment to reach in period when set-pressure is opened up to safety valve, obtain in real time with
The measurement data of the pressure transmitter of safety valve connection, the measurement data are current data；
Corresponding pressure value is obtained according to the current data；
Obtain the maximum pressure value in measured pressure value；
Judgment step:
The maximum pressure value is compared to judge whether verification is qualified with set-pressure according to verification regulation.
8. safety valve set pressure automatic Verification method as claimed in claim 7, which is characterized in that judging whether verification closes
After lattice, corresponding verification report is automatically generated.
9. safety valve set pressure automatic Verification method as claimed in claim 7, which is characterized in that further comprising the steps of:
It continuously executes three times and obtains verification data step and judgment step；
Judge whether that check results are qualification three times；
If so, determining safety valve testing qualification；
If it is not, then determining that the safety valve testing is unqualified.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has executable meter
Calculation machine program, the computer program can be realized when running such as a kind of described in any item safety valve setting pressures of claim 7 to 9
Power automatic Verification method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654768.3A CN110398354A (en) | 2019-07-19 | 2019-07-19 | A kind of safety valve automatic inspection device, method of calibration and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654768.3A CN110398354A (en) | 2019-07-19 | 2019-07-19 | A kind of safety valve automatic inspection device, method of calibration and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110398354A true CN110398354A (en) | 2019-11-01 |
Family
ID=68324748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910654768.3A Pending CN110398354A (en) | 2019-07-19 | 2019-07-19 | A kind of safety valve automatic inspection device, method of calibration and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834208A (en) * | 2021-02-26 | 2021-05-25 | 重庆科技学院 | Automatic calibration system for pressure of safety valve calibration equipment |
| CN113759799A (en) * | 2021-09-18 | 2021-12-07 | 中车唐山机车车辆有限公司 | Calibration circuit and calibration equipment |
-
2019
- 2019-07-19 CN CN201910654768.3A patent/CN110398354A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834208A (en) * | 2021-02-26 | 2021-05-25 | 重庆科技学院 | Automatic calibration system for pressure of safety valve calibration equipment |
| CN113759799A (en) * | 2021-09-18 | 2021-12-07 | 中车唐山机车车辆有限公司 | Calibration circuit and calibration equipment |
| CN113759799B (en) * | 2021-09-18 | 2023-04-28 | 中车唐山机车车辆有限公司 | Verification circuit and verification device |
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